Complex sodium bismuth salt of triglycollamic acid



Patented May 5, 1925.

UNITED stares PATENT OFFICE.

HANS HAIIL, ELBERFELD, GERMANY, ASSIGNO-R TO FARBENFABRIKEN' VORM.

FRIEDR. BAYER; AND GQ., F MANY.

LEVEEKUSEN, NEAR GOLOGNE-ON-THE-RHINE', GER- CQMPLEX SODIUM BISM'UTH SALT OF TRIGLYCO LLAMIC ACID.

No Drawing.

To all whom ill may concern:

Be it known that I, HANS HAHL, a citizen of Germany, residing at Elberfeld, in the State of Prussia, Germany, have invented new afld'useful Improvements in Complex Sodium Bismuth Salt of 'lriglycollamic Acid, of which the following is a specification.

- The present inventionboncerns the production of a hitherto-unknown compound of L bismuth with triglycollamic acid. It is a whitish powder soluble water to a neuand the mixture is'heated until all* Application filed October 17, 1924. Serial No. 744,266...

will be dissolved- The alkaline liquid is filtered, neutralized with triglycollamic acid and evaporated to dryness. The complex sodium bismuth salt of the triglycollamic acid is thus obtained. It has most probably the formula:

out-000m N CHrCO0Na Bi. I era-coo 3 I claim p The hereln described new complex sodium bismuth salt of triglycollamic acid having most probably the formula I om-oooNa [N CHz-COONa} Bi. 0112-000 3 and being a whitish amorphous compound containing about 20 per cent bismuth soluble in water with a neutral reaction.

In testimony whereof I have hereunto set my hand. i

HANS HAHL. 

